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W925C65 Datasheet Preview

W925C65 Datasheet

8-bit CID Microcontroller

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W925E/C625
8-bit CID Microcontroller
1 GENERAL DESCRIPTION...................................................................................................................... 3
2 FEATURES .................................................................................................................................................. 3
3 PIN CONFIGURATION............................................................................................................................ 5
4 PIN DESCRIPTION ................................................................................................................................... 6
5 BLOCK DIAGRAM ................................................................................................................................... 8
6 FUNCTIONAL DESCRIPTION .............................................................................................................. 9
6.1 MEMORY ORGANIZATION ................................................................................................................... 10
6.2 SPECIAL FUNCTION REGISTERS........................................................................................................... 13
6.3 INITIAL STATE OF REGISTERS.............................................................................................................. 31
6.4 INSTRUCTION ....................................................................................................................................... 32
6.5 POWER MANAGEMENT ........................................................................................................................36
6.6 RESET ................................................................................................................................................... 37
6.7 INTERRUPT ........................................................................................................................................... 37
6.8 PROGRAMMABLE TIMERS/COUNTERS ................................................................................................ 39
6.9 SERIAL PORT 1 .....................................................................................................................................44
6.10 COMPARATOR ...................................................................................................................................... 45
6.11 DTMF GENERATOR............................................................................................................................. 45
6.12 FSK GENERATOR ................................................................................................................................ 46
6.13 I/O PORTS.............................................................................................................................................48
6.14 DIVIDER................................................................................................................................................48
6.15 LCD...................................................................................................................................................... 48
6.16 CALLING IDENTITY DELIVERY (CID) .................................................................................................52
7 ELECTRICAL CHARACTERISTICS .................................................................................................65
7.1 MAXIMUM RATINGS* .......................................................................................................................... 65
7.2 RECOMMENDED OPERATING CONDITIONS ......................................................................................... 65
7.3 DC ELECTRICAL CHARACTERISTICS .................................................................................................. 65
ELECTRICAL CHARACTERISTICS - GAIN CONTROL OP-AMPLIFIER...............................................................67
7.4 AC ELECTRICAL CHARACTERISTICS .................................................................................................. 67
8 PACKAGE.................................................................................................................................................. 70
9 VERSION STATEMENT ........................................................................................................................71
-1- Release Date : 2002/7/2
Revision : A6




Winbond

W925C65 Datasheet Preview

W925C65 Datasheet

8-bit CID Microcontroller

No Preview Available !

W925E/C625
8-bit CID Microcontroller
FIGURE 3-1 W925E/C625 PIN CONFIGURATION .................................................................................................. 5
FIGURE 6-1 PROGRAM MEMORY MAP ................................................................................................................10
FIGURE 6-2 MEMORY MAP .................................................................................................................................. 11
FIGURE 6-3 SCRATCHPAD RAM/REGISTER ADDRESSING.................................................................................. 12
FIGURE 6-4 THE STRUCTURE OF CID FLAGS...................................................................................................... 38
FIGURE 6-5 MODE 0 & MODE 1 OF TIMER/COUNTER 0 & 1.............................................................................. 40
FIGURE 6-6 MODE 2 OF TIMER/COUNTER 0 & 1 ................................................................................................ 41
FIGURE 6-7 WATCHDOG TIMER...........................................................................................................................42
FIGURE 6-8 TIMING OF THE SERIAL PORT 1 INPUT FUNCTION........................................................................... 44
FIGURE 6-9 TIMING OF THE SERIAL PORT 1 OUTPUT FUNCTION ....................................................................... 45
FIGURE 6-10 THE CONFIGURATION OF COMPARATOR ....................................................................................... 45
FIGURE 6-11 THE RELATION BETWEEN DTMF AND KEYPAD........................................................................... 46
FIGURE 6-12 FSK MODULATOR .......................................................................................................................... 47
FIGURE 6-13 13/14-BIT DIVIDER ......................................................................................................................... 48
FIGURE 6-14 LCD ALTERNATING FREQUENCY (FLCD) CIRCUIT DIAGRAM...................................................... 49
FIGURE 6-15 1/5 BIAS LCD POWER CONNECTION............................................................................................. 51
FIGURE 6-16 LCD WAVEFORM FOR 1/5 BIAS...................................................................................................... 51
FIGURE 6-17 THE CID BLOCK DIAGRAM ........................................................................................................... 52
FIGURE 6-18 APPLICATION CIRCUIT OF THE RING DETECTOR........................................................................... 53
FIGURE 6-19 DIFFERENTIAL INPUT GAIN CONTROL CIRCUIT ............................................................................54
FIGURE 6-20 SINGLE-ENDED INPUT GAIN CONTROL CIRCUIT........................................................................... 54
FIGURE 6-21 GUARD TIME WAVEFORM OF ALERT TONE SIGNAL DETECTION ................................................55
FIGURE 6-22 THE WAVEFORM OF DTMF DETECTION....................................................................................... 56
FIGURE 6-23 FSK DETECTION ENABLE AND FSK CARRIER PRESENT AND ABSENT TIMING .......................... 56
FIGURE 6-24 SERIAL DATA INTERFACE TIMING OF FSK DEMODULATION....................................................... 57
FIGURE 6-25 INTERNAL CID GAIN CONTROL REGISTER SETTING WAVEFORM ............................................... 58
FIGURE 6-26 APPLICATION CIRCUIT OF CID ...................................................................................................... 59
FIGURE 6-27 INPUT AND OUTPUT TIMING OF BELLCORE ON-HOOK DATA TRANSMISSION ............................. 60
FIGURE 6-28 INPUT AND OUTPUT TIMING OF BELLCORE OFF-HOOK DATA TRANSMISSION............................61
FIGURE 6-29 INPUT AND OUTPUT TIMING OF BT IDLE STATE (ON-HOOK) DATA TRANSMISSION.................. 62
FIGURE 6-30 INPUT AND OUTPUT TIMING OF BT LOOP STATE (OFF-HOOK) DATA TRANSMISSION ............... 63
FIGURE 6-31 INPUT AND OUTPUT TIMING OF CCA CALLER DISPLAY SERVICE DATA TRANSMISSION .......... 64
-2- Release Date : 2002/7/2
Revision : A6


Part Number W925C65
Description 8-bit CID Microcontroller
Maker Winbond
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